.nav {
    width: 234px;
    height: 460px;
    /* margin: 50px; */
    background-color: #a19f9f;
    position: relative;
    ul {
        box-sizing: border-box;
        padding: 10px;
        display: flex;
        justify-content: space-between;
        flex-direction: column;
        height: 100%;
        li {

            margin-left: 30px;
            margin-top: 25px;
            font-size: 12px;
            color: #ffffff;
        
            /* font-size: 12px;
            cursor: pointer;
            transition: color .3s linear;
            display: flex;
            align-items: center; */
            span {
                color: #333;
              }
            span:hover {
                color: red;
              }
          }
    }
    .content {
        width: 1000px;
        min-height: 470px;
        background-color: #fff;
        position: absolute;
        left: 110%;
        top: 0;
        box-sizing: border-box;
        padding: 20px;
        display: none;
        justify-content: space-between;
        z-index: 7;
        .left {
            flex: 1;
            box-sizing: border-box;
            padding-right: 20px;
            .tags {
                height: 20px;
                display: flex;
                li {
                    padding: 5px 10px 5px 5px;
                    background-color: #333;
                    font-size: 14px;
                    display: flex;
                    justify-content: center;
                    align-items: center;
                    margin-right: 10px;
                    span {
                        color: #fff;
                    }
                    i {
                        font-style: normal;
                        color: #fff;
                        margin-left: 5px;
                      }
                  }
            }
            .cate_list {
                display: flex;
                flex-direction: column;
                justify-content: space-between;
                margin-top: 15px;
                li {
                    display: flex;
                    font-style: 14px;
                    .name {
                        width: 100px;
                        text-align: right;
                        box-sizing: border-box;
                        padding-right: 10px;
                        span {
                            font-weight: 700;
                            font-style: 14px;
                        }
                        i {
                            font-style: normal;
                          }
                    }
                    ol {
                        flex: 1;
                        display: flex;
                        flex-wrap: wrap;
                        li {
                            color: #333;
                            padding: 0 5px;
                            margin-bottom: 3px;
                          }
                      }
                }
            }
            .right {
                width: 170px;
                display: flex;
                flex-direction: column;
                justify-content: space-between;
                .small_list {
                    margin-bottom: 10px;
                    display: flex;
                    flex-wrap: wrap;
                    justify-content: space-between;
                    align-content: space-between;
                    li {
                        width: 85px;
                        height: 35px;
                        margin-bottom: 2px;
                      }
                }
                .big_list {
                    flex: 1;
                    li {
                        width: 100%;
                        height: 130px;
                        margin-bottom: 2px;
                      }
                }
              }
          }
    }
    .list.content {
        display: block;  
      }
}
  
  .nav > .content.active {
    display: flex;
  }